Sleeve for multi-stage wellbore stimulation

An assembly comprises a tubular housing having a bore therethrough and at least one stimulation port therein to communicate fluid from the bore to outside the tubular housing and a sleeve axially movable in the tubular housing. The sleeve comprises a first baffle and a second baffle. The sleeve is initially in a first closed position, wherein the sleeve is to axially move from the first closed position to an open position in response to the first baffle receiving a first object therein, wherein the at least one stimulation port is open in the open position. The sleeve is to axially move from the open position to a second closed position in response to the second baffle receiving a second object received therein, wherein the second object is larger than the first object, where the at least one stimulation port is closed in the second closed position.

BACKGROUND

As part of hydrocarbon recovery from subsurface formations into which a wellbore is formed, different zones of the subsurface formations may be stimulated in order to assist and maximize recovery of hydrocarbons. For example, stimulation may enable extraction of hydrocarbons that may be trapped in unconventional formations.

DESCRIPTION

The description that follows includes example systems, methods, techniques, and program flows that embody aspects of the disclosure. However, it is understood that this disclosure may be practiced without these specific details. In some instances, well-known instruction instances, protocols, structures, and techniques have not been shown in detail in order not to obfuscate the description.

Example embodiments may include a sleeve to be positioned in a wellbore and to be used for stimulation operations. For example, some implementations may be used for fracking operations of the surrounding subsurface formation. Some implementations may include a single sleeve having at least three positions and at least two baffles. A first position may be a first closed position. For example, the sleeve may be in the first closed position when running the sleeve downhole into position. In response to dropping a first object downhole into the sleeve, the sleeve may then be moved to a second position—an open position to allow for stimulation via stimulation ports. For example, the sleeve may be moved into the open position in response to the first object being dropped into a first baffle of the sleeve (after passing through a second baffle). In some implementations, the first baffle may be a multi-entry (ME) baffle that includes an expandable seat. The second baffle may be a single entry (SE) baffle that includes a solid (non-expandable) seat.

The sleeve may have at least two shear members. A first shear member may be sheared in response to a pressure increase in the sleeve caused by the first object being in the seat of the first baffle. This shearing of the first shear member may result in the sleeve moving downward to the open position. In response to the shearing of the first shear member, the first baffle may also extrude outwards to allow the first object to pass. However, the sleeve will be stopped from further downwards by a second shear member. Thus, the sleeve is in an open position to allow this zone of the subsurface formation to be fracked. In response to the pressure increase caused by the first object being in the first baffle, the sleeve may move downward (because of the shearing of the first shear member). In turn, this may cause the inner diameter of the first baffle to expand outwards. This increase in the inner diameter of the first baffle enables the first object to travel further downward and to be seated in the second baffle of a different sleeve positioned below this current sleeve in the wellbore. This may result in closing the stimulation ports of this different sleeve below.

After stimulation (e.g., fracking) is complete for the zone of the subsurface formation where this sleeve is positioned, a second object (larger than the first object) is dropped into the sleeve. This second object may open the first baffle of the sleeve above this current sleeve—landing in the second baffle of the current sleeve. In response to dropping the second object into the sleeve, the sleeve may then be moved to a third position—a second closed position to close the stimulation port. For example, the sleeve may be moved into the second closed position in response to the second object being dropped into a seat of a second baffle of the sleeve. The sleeve may have a second shear member that is sheared in response to a pressure increase in the sleeve caused by the second object being in the seat of the second baffle. This shearing of the second shear member may result in the sleeve moving downward to the second closed position.

Some implementations may include erodible nozzles. These erodible nozzles may initially choke or block the flow through the stimulation ports in order to allow sufficient flow of the fluid downhole to ensure that the first object lands in a different sleeve below in order to close this different sleeve. For example, the erodible nozzles may be composed of material that when exposed to the stimulation fluid breaks down or dissolves over time. Then, after the erodible nozzles in the current sleeve erode, fracking of the current subsurface formation may occur through stimulation ports of the current sleeve. This process may be repeated on multiple zones having sleeves with baffles with incrementally larger inner diameters and dropping incrementally larger objects.

Some implementations may include a damping fluid to dampen movement resulting from shearing the first shear member so that the sleeve lands relatively gently on the second shear member and does not damage or prematurely shear the second shear member from impact from movement of the sleeve.

Accordingly (as further described below), example embodiments may include a single sleeve—not requiring multiple sleeves (e.g., one sleeve for closing and one sleeve for opening). Also, example embodiments may enable fracking then closing the frac sleeves after fracturing is complete without running intervention tools on wireline, slickline, coil tubing, etc. to close the sleeve. Additionally, such embodiments would minimize the risk of the sleeve getting stuck in the wellbore during such trips in and out of the wellbore for opening and closing of the sleeve. Also, closing force obtained by dropping objects into the sleeves is much greater than the force obtained by a shifting tool run on coil tubing.

In some implementations, the sleeve may be configured to be run downhole as a single sleeve. The single sleeve may then be split in two when the first object is dropped. For example, the first shear member may be configured to be weaker than the second shear member. In response to the first object being dropped, a bottom half of the sleeve may move downward to expose the stimulation ports (to enable stimulation of the subsurface formation). The first object may continue downhole to close the sleeve below. After stimulation is complete, the second object may be dropped on the second baffle which opens the sleeve above and closes the current sleeve.

In some implementations, a wellbore system may include multiple sleeves positioned at different depths along the wellbore formed in a subsurface formation. Each sleeve may be associated with a different zone of the subsurface formation, such that a given zone may be stimulated with fluid using stimulation ports of the sleeve. For example, a given zone may be stimulated as part of fracking operations. One zone at a time may be stimulated. In some implementations, the zone that is deepest in the wellbore is stimulated first, followed by the zone above, etc. until the zone nearest the surface of the wellbore is stimulated.

Example Sleeves

Different example implementations of a sleeve are now described with reference toFIGS.1-10.FIG.1is a cross-sectional view of a sleeve in a first closed positioned and to be positioned downhole in a wellbore, according to some embodiments.

A sleeve100(shown inFIG.1) is in a first closed position—which may be the position of the sleeve100while the sleeve100is run downhole into position in a casing lining a wellbore or an open hole section. An example of such a wellbore system is depicted inFIG.12(which is further described below). InFIG.1, assume a surface and bottom on the wellbore are on the left side and right side, respectively. The sleeve100may include a tubular housing140having a bore142formed therethrough. The sleeve100also includes a number of openings144, a stimulation port106, and a port alignment opening107.

The sleeve100also includes a first baffle104and a second baffle102. The first baffle104includes an expandable seat105. In this example, the second baffle102is positioned closer to a surface of the wellbore (as compared to the first baffle104). In some implementations, the first baffle104may be a multi-entry (ME) baffle that includes an expandable seat. The second baffle102may be a single entry (SE) baffle that includes a solid (non-expandable) seat. The sleeve100also includes a first shear member108and a second shear member110. The sleeve100may be held in position by the first shear member108.

In some implementations, the sleeve100also includes a shock absorber150positioned above the second shear member110. As further described below, the shock absorber150may reduce the impact on the second shear member110to avoid the second shear member110being prematurely sheared and help the second shear member110to stop the sleeve100in the open position after the sleeve100moves downward after the first shear member108is sheared.

FIG.2is a more detailed cross-sectional view of a portion of the sleeve ofFIG.1, according to some embodiments.FIG.2depicts a more detailed view of a portion of the tubular housing140, the port alignment opening107, the stimulation port106, and the first shear member108.

The sleeve100may first be run downhole while in a first closed position. Additionally, the sleeve100is held in position (not allowing the sleeve to move to a lower position) by the first shear member108. While in a closed position, the stimulation ports106are not aligned with the port alignment opening107so that the stimulation ports106are closed. Accordingly, in the closed position, stimulation fluid flowing downhole through the bore142does not flow out from the stimulation ports106and into the surrounding subsurface formation.

Next, the sleeve100is moved from the first closed position to an open position. To illustrate,FIG.3is a cross-sectional view of the sleeve ofFIG.1after a first object is dropped down the wellbore and passed through a second baffle and to a seat of a first baffle in the sleeve, according to some embodiments. To move the sleeve100from a first closed position to an open position, a first object302is pumped downhole via fluids flowing through the bore142. A diameter of a first object302may be smaller than an inner diameter of the second baffle102so that the first object302passes through the second baffle. The diameter of the first object302may be larger than an inner diameter of the first baffle104. Accordingly, the first object302lands in the expandable seat105of the first baffle104. While depicted as having an oval or circular shape, the first object302may be any other shape (such as triangular, square, etc.).

FIG.4is a cross-sectional view of the sleeve ofFIG.3after the sleeve moves downward to an open position in response to shearing of a first shear member due to a pressure increase, according to some embodiments. The sleeve100moves downward and is stopped by the second shear member110. Thus, the second shear member110stops the sleeve100in the open position by aligning the port alignment opening107with the stimulation port106.

The stimulation fluid may continue to flow through the bore142from the surface of the wellbore. Because the first object302is seated in the expandable seat105of the first baffle104, flow of the stimulation fluid is blocked from flowing further downhole in the wellbore beyond the first baffle104. This will result in an increasing pressure on the first object302. This pressure on the first object302continues to increase until the first shear member108is sheared forcing the sleeve100to move downward to an open position. In particular, as shown inFIG.4, the sleeve100has moved downward such that the port alignment opening107is aligned with the stimulation port106. Accordingly, the stimulation fluid flowing in the bore142is output through the stimulation port106via the openings144into the surrounding subsurface formation. Additionally, as shown inFIG.4, as the first baffle104moves downward, the expandable seat105moves further downward to a position that enables the expandable seat105to expand.

FIG.5is a cross-sectional view of the sleeve ofFIG.4after the first object passed through the first baffle in response to the sleeve moving downward that results in an inner diameter increase of the first baffle, according to some embodiments. As shown inFIG.5, the sleeve100is still in the open position. As the sleeve100moves downward, the first baffle104enters an area with a larger inner diameter—thereby allowing the expandable seat105to further expand outward. This expansion of the expandable seat105allows the first object302to pass through the first baffle104. In some implementations, the first object302may pass through a bore of a sleeve positioned below the sleeve100—landing on the second baffle of this sleeve below to close this sleeve.

In some implementations, the stimulation port106may include an erodible nozzle. The erodible nozzle may initially choke or block the flow through the stimulation port106in order to allow sufficient flow of the fluid downhole to ensure that the first object302lands in a different sleeve below this current sleeve in order to close this different sleeve. For example, the erodible nozzle may be composed of material that when exposed to the stimulation fluid breaks down or dissolves over time, or eroded by the flow through it. Then, after the erodible nozzle in the current sleeve erodes, stimulation (e.g., fracking) of the current subsurface formation may occur through the stimulation port106of the current sleeve. t

FIG.6is a more detailed cross-sectional view of a portion of the sleeve ofFIG.1that includes a dampening fluid, according to some embodiments.FIG.6depicts a more detailed view of a portion of the tubular housing140, the first baffle104, and the expandable seat105. The tubular housing140may include a dampening fluid602positioned above the second shear member110to dampen movement of the sleeve100that is a result of shearing the first shear member108. The dampening fluid602may reduce the impact of the sleeve100on the second shear member110as the sleeve100moves downward—landing on the second shear member110. This dampening fluid602may prevent the premature shearing of the second shear member110that may be caused by impact of the sleeve100as it moves to the open position.

FIG.7is a cross-sectional view of the sleeve ofFIG.5after a second object is dropped down the wellbore to a seat of a second baffle in the sleeve, according to some embodiments. After stimulation operations of the zone in the surrounding subsurface formation is complete, a second object702may be pumped downhole through the bore142. The second object702may be larger than an inner diameter of the second baffle102. Accordingly, the second object702may be seated in the second baffle102. In some implementations, the second object702may be the first object being released by the first baffle from the sleeve above the sleeve100in the wellbore. While depicted as having an oval or circular shape, the second object702may be any other shape (such as triangular, square, etc.).

FIG.8is a cross-sectional view of the sleeve ofFIG.7after the sleeve moves down to a second closed position in response to shearing of second shear member due to a pressure increase, according to some embodiments. InFIG.8, because the second object702is seated in the second baffle102, flow of the stimulation fluid is blocked from flowing further downhole in the wellbore beyond the second baffle102.

This will result in an increasing pressure on the second object702. This pressure on the second object702continues to increase until the second shear member110is sheared forcing the sleeve100to move downward to a second closed position. In particular, as shown inFIG.8, the sleeve100has moved downward such that the port alignment opening107is no longer aligned with the stimulation port106. Accordingly, the stimulation fluid flowing in the bore142is no longer output through the stimulation port106via the openings144into the surrounding subsurface formation.

In some implementations, the sleeve may be configured to run as one sleeve downhole into positioned in the wellbore and then split in two after a first object is dropped. To illustrate,FIG.9is a cross-sectional view of a sleeve in a first closed position and to be positioned downhole in a wellbore, according to some other embodiments.FIG.9depicts a sleeve900that includes a similar configuration as the sleeve100ofFIG.1.

A sleeve900(shown inFIG.9) is in a first closed position—which may be the position of the sleeve900while the sleeve900is run downhole into position in a casing lining a wellbore. An example of such a wellbore system is depicted inFIG.12(which is further described below).

InFIG.9, assume a surface and bottom of the wellbore are on the left side and right side, respectively. The sleeve900may include a tubular housing940having a bore942formed therethrough. The sleeve900also includes a stimulation port906.

The sleeve900also includes a first baffle904and a second baffle902. The first baffle904includes an expandable seat905. In this example, the second baffle902is positioned closer to a surface of the wellbore (as compared to the first baffle904). In some implementations, the first baffle904may be a multi-entry (ME) baffle that includes an expandable seat. The second baffle902may be a single entry (SE) baffle that includes a solid (non-expandable) seat. The sleeve900also includes a first shear member908and a second shear member910. The sleeve900may be held in position by the first shear member908.

Similar to the sleeve100, in some implementations, the sleeve900may include one or both of the dampening fluid and shock absorber to avoid the second shear member910being prematurely sheared and help the second shear member910to stop the sleeve900in the open position after the sleeve900moves downward after the first shear member908is sheared.

The sleeve900includes two shear members—a first shear member908and a second shear member910. In some implementations, the first shear member908may be configured to be weaker than the second shear member910.

After the first object is dropped, the first shear member908may be sheared—causing the sleeve900to be split in two parts. In response to the split, the bottom part of the sleeve900may move downward—exposing the stimulation port906to enable flow of a stimulation fluid out into the surrounding subsurface formation.

Similar to the configuration of the sleeve100, the first object may continue downhole to close the sleeve below the sleeve900. After stimulation operations are complete, a second object may be dropped down through the bore942and seated in the second baffle902to move the sleeve900to a closed position. Similar to the operations of the sleeve100, the dropping of the second object may also open the sleeve above the sleeve900.

FIG.10is a more detailed cross-sectional view of a portion of the sleeve ofFIG.9, according to some embodiments.FIG.10depicts a more detailed view of a portion of the tubular housing940, the second baffle902, the, the stimulation port906, the first shear member908, and the second shear member910.

Example Operations

Example operations for using a sleeve for a multi-stage wellbore stimulation are now described. In particular,FIG.11is a flowchart of example operations of a sleeve having a multi-stage wellbore stimulation, according to some embodiments. Operations of a flowchart11ofFIG.11can be performed by software, firmware, hardware, or a combination thereof. Operations of the flowchart1100are described in reference to the example of sleeves ofFIGS.1-8. However, other systems and components can be used to perform the operations now described. For example, operations of the flowchart1100may be performed by the example implementations depicted inFIGS.9-10. The operations of the flowchart1100start at block1102.

At block1102, the sleeve that is deepest in the wellbore is opened by pressure from fluid flow down the wellbore—to establish a flow path to pump a first object downhole for subsequent zones. For example, a flow of fluid can be pumped downhole through the bores of the sleeves to open the sleeve that is deepest in the wellbore.

At block1104, a first object is pumped down a wellbore and through a bore of a tubular housing that is positioned in the wellbore, such that the first object is seated in a first baffle of a sleeve positioned in the tubular housing after passing through a second baffle of the sleeve. The sleeve is to axially move from a first closed position to an open position in response to the first object being seated in the first baffle (wherein at least one stimulation port of the tubular housing is open in the open position). For example with reference toFIGS.1-4, the first object302is pumped down the wellbore and through the bore142of the tubular housing140. The first object302is seated in the expandable seat105of the first baffle104after passing through the second baffle102. This results in the sleeve100moving from a first closed position to an open position—enabling the stimulation port106to be open.

At block1106, at least one erodible nozzle in the at least one stimulation port chokes the flow of the stimulation fluid into the subsurface formation, until the first object passes through the first baffle and is seated in a different second baffle of a different sleeve positioned below the sleeve in the wellbore. For example with reference toFIGS.1-4, the stimulation port106may include an erodible nozzle. The erodible nozzle may initially choke or block the flow through the stimulation port106in order to allow sufficient flow of the fluid downhole to ensure that the first object302lands in a different sleeve below this current sleeve in order to close this different sleeve. For example, the erodible nozzle may be composed of material that when exposed to the stimulation fluid breaks down or dissolves over time.

At block1108, stimulation fluid is pumped through the at least one stimulation port and into the subsurface formation into which the wellbore is formed after the at least one erodible nozzle has been eroded from the stimulation fluid. For example with reference toFIGS.1-4, after the erodible nozzle in the stimulation port106of the sleeve100erodes, stimulation (e.g., fracking) of the current subsurface formation may occur through the stimulation port106of the sleeve100. This process may be repeated on multiple zones having sleeves with baffles with incrementally larger inner diameters and dropping incrementally larger objects.

At block1110, a second object is pumped down the wellbore and through the bore of the tubular housing such that the second object is seated in the second baffle of the sleeve. The sleeve is to axially move from an open position to a second closed position in response to the second object being seated in the second baffle (wherein the at least one stimulation port is closed in the second closed position). For example with reference toFIGS.7-8, the second object708is pumped down the wellbore and through the bore142of the tubular housing140such that the second object708is seated in the second baffle102. This results in the sleeve moving from the open position to the second closed position.

Example System

An example system having sleeves for a multi-stage wellbore stimulation is now described. In particular,FIG.12is an elevation view in partial cross section of a well system having sleeves for multi-stage stimulation, according to some embodiments.

FIG.12includes a multi-zone fracturing system (hereinafter “system)1210. As illustrated, the system1210may be disposed in a wellbore1212lined with a casing1214and a cement1216. The system1210may include multiple sleeves1218positioned in the wellbore1212and installed along the casing1214. The sleeves1218may be run in on a production string1219. As used herein, the term “casing” is intended to be understood broadly as referring to casing and/or liners. The sleeves1218may be positioned at predetermined locations along the length of the wellbore1212. These locations may correspond to the formation of perforations1220through the casing1214and cement1216, and outward into a subsurface formation1222surrounding the wellbore1212. Examples of the sleeves1218are depicted inFIGS.1-10(described above). As described above, the sleeves1218may be selectively opened to provide access from an interior of the wellbore1212surrounded by the casing1214to the formation1222.

As illustrated, any number of sleeves1218may be positioned along the length of the wellbore1212in order to accommodate selective exposure of different zones1224of the formation1222to the wellbore1212. This may be particularly desirable when perforating the different zones1224of the formation1222or providing fracture treatments to previously formed perforations1220or in open hole sections (no casing) at the different zones1224. The different zones1224may be isolated using packers1290.

WhileFIG.12depicts the system1210as being arranged along a vertically oriented portion of the wellbore1212, it will be appreciated that the system1210may be equally arranged in a horizontal or slanted portion of the wellbore1212, or any other angular configuration therebetween. Additionally, the system1210may be arranged along other portions of the vertical wellbore1212in order to provide access to the formation1222at a location closer to a toe portion1226of the wellbore1212.

Example Embodiments

Embodiment #1: An assembly for incorporation into a completion string and to be positioned in a wellbore, the assembly comprising: a tubular housing having a bore therethrough and at least one stimulation port therein to communicate fluid from the bore to outside the tubular housing; and a sleeve axially movable in the tubular housing, the sleeve comprising, a first baffle; and a second baffle, wherein the sleeve is initially in a first closed position, wherein the sleeve is to axially move from the first closed position to an open position in response to the first baffle receiving a first object therein, wherein the at least one stimulation port is open in the open position, and wherein the sleeve is to axially move from the open position to a second closed position in response to the second baffle receiving a second object received therein, wherein the second object is larger than the first object, where the at least one stimulation port is closed in the second closed position.

Embodiment #2: The assembly of Embodiment #1, wherein the at least one stimulation port comprises at least one erodible nozzle.

Embodiment #3: The assembly of any one Embodiments #1-2, wherein after the at least one stimulation port is opened, the at least one erodible nozzle is to choke flow of a fluid through the at least one stimulation port for a defined time period.

Embodiment #4: The assembly of Embodiment #3, wherein the defined time period is at least a period of time until the first object passes through the first baffle and is seated in a different second baffle of a different sleeve positioned below the sleeve in the wellbore.

Embodiment #5: The assembly of any one Embodiments #1-4, wherein the sleeve comprises: at least one first shear member that is to be sheared in response to a pressure increase from the first object being seated in the first baffle; and at least one second shear member that is to be sheared in response to a pressure increase from the second object being seated in the second baffle.

Embodiment #6: The assembly of Embodiment #5, wherein the sleeve is to split into two portions in response to the at least one first shear member being sheared.

Embodiment #7: The assembly of Embodiment #5, further comprising at least one of a dampening fluid or a shock absorber positioned to reduce impact from the axial movement of the sleeve on the at least one second shear member after the at least one first shear member is sheared.

Embodiment #8: The assembly of any one Embodiments #1-7, wherein the first baffle comprises a multi-entry baffle with an expandable seat and the second baffle comprises a single entry baffle with a non-expandable seat.

Embodiment #9: The assembly of any one Embodiments #1-8, wherein the first object is to pass through the first baffle and into a different sleeve below the sleeve to close the different sleeve.

Embodiment #10: A multi-stage completion system for a wellbore, the multi-stage completion system comprising: a completion string having a number of assemblies and to be positioned in the wellbore, wherein each assembly of the number of assemblies comprises, a tubular housing having a bore therethrough and at least one stimulation port therein to communicate fluid from the bore to outside the tubular housing; and a sleeve axially movable in the tubular housing, the sleeve comprising, a first baffle; and a second baffle, wherein the sleeve is initially in a first closed position, wherein the sleeve is to axially move from the first closed position to an open position in response to the first baffle receiving a first object therein, wherein the at least one stimulation port is open in the open position, and wherein the sleeve is to axially move from the open position to a second closed position in response to the second baffle receiving a second object received therein, wherein the second object is larger than the first object, where the at least one stimulation port is closed in the second closed position.

Embodiment #11: The multi-stage completion system of Embodiment #10, wherein the at least one stimulation port comprises at least one erodible nozzle, wherein after the at least one stimulation port is opened, the at least one erodible nozzle is to choke flow of a fluid through the at least one stimulation port for a defined time period, wherein the defined time period is at least a period of time until the first object passes through the first baffle and is seated in a different second baffle of a different sleeve positioned below the sleeve in the wellbore.

Embodiment #12: The multi-stage completion system of any one Embodiments #10-11, wherein the sleeve comprises: at least one first shear member that is to be sheared in response to a pressure increase from the first object being seated in the first baffle; and at least one second shear member that is to be sheared in response to a pressure increase from the second object being seated in the second baffle.

Embodiment #13: The multi-stage completion system of Embodiment #12, wherein the sleeve is to split into two portions in response to the at least one first shear member being sheared.

Embodiment #14: The multi-stage completion system of Embodiment #12, further comprising at least one of a dampening fluid or a shock absorber positioned to reduce impact from the axial movement of the sleeve on the at least one second shear member after the at least one first shear member is sheared.

Embodiment #15: The multi-stage completion system of any one Embodiments #10-14, wherein the first baffle comprises a multi-entry baffle with an expandable seat and the second baffle comprises a single entry baffle with a non-expandable seat.

Embodiment #16: The multi-stage completion system of any one Embodiments #10-15, wherein the first object is to pass through the first baffle and into a different sleeve below the sleeve to close the different sleeve.

Embodiment #17: A method for stimulating a subsurface formation into which a wellbore is formed, the method comprising: pumping a first object down the wellbore and through a bore of a tubular housing that is positioned in the wellbore, such that the first object is seated in a first baffle of a sleeve positioned in the tubular housing after passing through a second baffle of the sleeve, wherein the sleeve is to axially move from a first closed position to an open position in response to the first object being seated in the first baffle, and wherein at least one stimulation port of the tubular housing is open in the open position; pumping stimulation fluid through the at least one stimulation port and into the subsurface formation; and pumping a second object down the wellbore and through the bore of the tubular housing such that the second object is seated in the second baffle of the sleeve, wherein the sleeve is to axially move from an open position to a second closed position in response to the second object being seated in the second baffle, and wherein the at least one stimulation port is closed in the second closed position.

Embodiment #18: The method of Embodiment #17, further comprising: choking, via at least one erodible nozzle, flow of the stimulation fluid through the at least one stimulation port and into the subsurface formation until the first object passes through the first baffle and is seated in a different second baffle of a different sleeve positioned below the sleeve in the wellbore.

Embodiment #19: The method of any one Embodiments #17-18, further comprising: flowing the stimulation fluid through the at least one stimulation port and into the subsurface formation after the at least one erodible nozzle has eroded from the stimulation fluid.

Embodiment #20: The method of any one Embodiments #17-19, wherein the sleeve comprises: at least one first shear member that is to be sheared in response to a pressure increase from the first object being seated in the first baffle; and at least one second shear member that is to be sheared in response to a pressure increase from the second object being seated in the second baffle.

Embodiment #21: The method of Embodiment #20, wherein the sleeve is to split into two portions in response to the at least one first shear member being sheared.

Embodiment #22: The method of Embodiment #20, further comprising: reducing, by at least one of a dampening fluid or a shock absorber, impact from the axial movement of the sleeve on the at least one second shear member after the at least one first shear member is sheared.

Embodiment #23: The method of any one Embodiments #17-22, wherein the first baffle comprises a multi-entry baffle with an expandable seat and the second baffle comprises a single entry baffle with a non-expandable seat.

Embodiment #24: The method of any one Embodiments #17-23, wherein the first object is to pass through the first baffle and into a different sleeve below the sleeve to close the different sleeve.