17 results about "Production packer" patented technology

A completion system for CO2 storage monitoring includes a first well tubular metal structure, a second well tubular metal structure, cement arranged between the borehole and a second part of the second well tubular metal structure, a monitoring line extending along the second well tubular metal structure and into the cement, a production packer assembly providing a seal between the first and second well tubular metal structures, the production packer assembly having an anchoring unit, and an annular barrier unit. Each unit comprises a tubular metal part configured to be mounted as part of a first part of the second well tubular metal structure, the tubular metal part having an expandable metal sleeve having a circumferential groove with an anchoring element and a sealing element. The monitoring line extends through the anchoring and annular barrier units between the tubular metal part and the expandable metal sleeve.

The utility model discloses a thermal recovery packer capable of being fished and unsealed, which comprises a central pipe, a releasing assembly used for driving setting of the packer, a fishing assembly used for fishing and unsealing of the packer, a rubber sleeve assembly used for sealing an annular space between the packer and a casing pipe and a slip assembly used for clamping and fixing the packer in the casing pipe are sequentially arranged on the outer wall of the central pipe from top to bottom, and the rubber sleeve assembly comprises a liner pipe and a rubber sleeve base. The upper end of the rubber sleeve seat is inserted into the outer tube, a starting shear pin is arranged between the outer tube and the rubber sleeve seat, a liner tube lock spring ring groove is formed in the inner wall of the liner tube, and a liner tube lock spring is arranged in the liner tube lock spring ring groove; the slip assembly comprises an upper cone, a setting shear pin is arranged between the upper cone and the liner tube, an upper cone lock spring ring groove is formed in the inner wall of the upper cone, and an upper cone lock spring is arranged in the upper cone lock spring ring groove. The thermal recovery packer is high in slip anchoring force, large in setting pressure difference, capable of meeting the use requirement of heavy oil thermal recovery under the high-temperature and high-pressure environment, and good in setting effect.

An oil pipe is arranged in a casing pipe, a production packer and a top packer are arranged in an annular space between the oil pipe and the casing pipe from top to bottom, the lower end of the oil pipe penetrates through the top packer and extends into a sand prevention section of the gas well, and the oil pipe punches holes in the upper portion of the production packer; an upper rubber sleeve and a lower rubber sleeve of the suspended overflowing packer are respectively arranged on the upper side and the lower side of the punching position of the oil pipe in a setting manner, and the suspended overflowing packer is used for suspending a speed pipe; a check valve is arranged between the lower rubber sleeve and the packer body, allows annular fluid between an oil pipe and a speed pipe to flow downwards and prevents fluid produced by a stratum from flowing upwards, and a gas injection channel entering the annular space of the oil pipe and the speed pipe from the annular space of the oil pipe and a sleeve is established; and a liquid drainage and gas production channel is established between the oil pipe at the upper part of the suspended overflowing packer and the speed pipe at the lower part of the suspended overflowing packer. The production capacity of the liquid-accumulating gas well can be recovered, continuous, stable and efficient liquid drainage and gas recovery are achieved, and the recovery efficiency of the gas well is improved.

The invention discloses an offshore deep continuous foam liquid drainage gas production process pipe column and an operation method, the pipe column comprises a production sleeve, an oil pipe, a lower suspension packer, an upper suspension packer and a continuous oil pipe, a production packer and a top packer are sequentially arranged between the oil pipe and the production sleeve from top to bottom, the oil pipe is located above the production packer for punching, and the continuous oil pipe is located above the production packer for drilling. The lower suspension packer is arranged below the punching position, the upper suspension packer is arranged above the punching position, the upper suspension packer is connected with the lower suspension packer in a sealed mode through an inserting head, and the lower portion of the lower suspension packer is connected with the coiled tubing. A foam scrubbing agent channel from an oil pipe and sleeve annulus to an oil pipe and continuous oil pipe annulus is established through cooperation of multiple tools, the foam scrubbing agent is introduced into a deep shaft liquid accumulation well section below a production packer and above a production layer from the oil pipe and production sleeve annulus, and the fluid density of a shaft is reduced; the mixed fluid is discharged from the continuous oil pipe and the upper oil pipe, and continuous and stable discharging and mining of the gas well are achieved.

The utility model relates to the technical field of packers, and discloses a novel oil drilling and production packer which comprises a control block, a plurality of sliding blocks are connected in the control block in a sliding mode, first sliding columns are fixedly connected to the two sides of the sliding blocks, extrusion blocks are fixedly connected to the exteriors of the first sliding columns, and the extrusion blocks are fixedly connected to the exteriors of the second sliding columns. And the exteriors of the multiple sliding blocks are rotationally connected with transmission rods, the exteriors of the multiple transmission rods are rotationally connected with rack plates, the front end of the control block is fixedly connected with a rubber barrel, a driving assembly used for driving is arranged in the control block, and a tubular column is slidably connected in the control block. According to the utility model, the rubber sleeve can be quickly controlled, and the state of the rubber sleeve can be timely and accurately adjusted according to different working condition requirements such as layered mining and water injection operation in petroleum drilling and production operation, so that the best packing effect is achieved, and the smooth development of various underground operations is guaranteed.

The present invention discloses an integrated system for heavy oil injection and production by using a small oil pipe to launch and salvage an electric pump, comprising an outer heat injection string and an inner production string, wherein the production string comprises a small oil pipe, an electric submersible pump connector, and an inverted electric submersible pump from top to bottom, and the electric submersible pump connector is provided with a second guide flow hole. The present application involves less ground operation equipment, high operation efficiency, and saves operation resources and costs; a small oil pipe is selected as the output fluid output channel to avoid fluid immersion and scouring in the annulus between the inner production string and the outer heat injection string, thereby protecting the thermal insulation performance of the insulated oil pipe and the insulation performance of the cable, and reducing the risk of failure; the electric submersible pump unit adopts an inverted pump design, and the cable is directly connected to the electric submersible pump motor after passing through the upper production packer, reducing the risk of cable crushing and improving the operating stability of the electric submersible pump in highly deviated wells; the small oil pipe has a strong launching and salvaging capability, and can realize launching and salvaging of the electric submersible pump in highly deviated wells and horizontal wells.

In the process of suspending a subsea hydrocarbon well (1) after finalizing the completion operation and prior to stimulation of the well and putting the well on production, preinstalled upper and lower glass plugs (11, 12) are used as temporary barriers in the tubing. The plugs allow various tests to be performed before the lower plug (12), below the production packer (10), is broken; the upper plug (11) located above the downhole safety valve (13) then forms one of the barriers required to suspend the well whilst the Blow Out Preventer (BOP) is removed and Xmas tree installed, at which point the upper plug (11) is broken.

The invention belongs to the technical field of heavy oil thermal recovery, and discloses a packer suitable for heavy oil thermal recovery, a nitrogen composite heat insulation pipe column and an implementation process. The packer and nitrogen composite heat insulation pipe column comprises a constant pressure valve, a thermal recovery packer, a check valve, a compensator and a heat insulation oil pipe. In order to solve the problems of limitation of a thermal insulation technology of an existing thickened oil thermal production well, limited thermal insulation effect of a packer and the like, thermal insulation of the packer is combined with a nitrogen thermal insulation technology, a tubular column structure utilizing the thermal production packer, a check valve, a constant pressure valve and a thermal insulation oil pipe is designed, and a continuous and efficient thermal insulation process method is formed by matching with nitrogen injection. Longer-time intermittent injection of nitrogen can be achieved, the steam injection heat insulation effect is effectively improved, and meanwhile the nitrogen consumption can be reduced.

A method to perform a completion operation of a wellbore is described. The method includes determining a wellbore trajectory of the wellbore penetrating a reservoir, generating a grid cell set of interest surrounding the wellbore, where the grid cell set of interest includes consecutive grid cells that are penetrated by the wellbore in the reservoir, generating, from the grid cell set of interest and using a clustering algorithm, grid cell clusters based on a grid cell position measure and a reservoir property of each grid cell, where each grid cell cluster corresponds to a flow compartment of the wellbore, and placing, during the completion operation and for each grid cell cluster, a packer at a starting position and an ending position of the corresponding flow compartment.

The application provides an energy storage injection and production packer, which comprises an inner tube, a first assembly, a second compression sleeve, a slip, a third compression sleeve and a second assembly which are sequentially sleeved on the outer wall of the inner tube and are connected at the first ends and the second ends, the third compression sleeve is sleeved at the first end of the second assembly through a second sliding groove and a second protrusion, the outer wall of the inner tube is further sleeved with a second reverse stopping part and a third reverse stopping part, the inner wall of the third compression sleeve is provided with an annular groove, a middle annular block is arranged in the annular groove, and the middle annular block is kept at a distance from the third reverse stopping part. The second compression sleeve and the third compression sleeve are driven in the inner cavity of the wellbore, the slip is simultaneously extruded from both ends, the slip is not interfered and is mutually assisted, the slip is expanded to form anchoring with the inner wall of the wellbore, the stability of the synchronous expansion deformation of the two ends of the slip is ensured, the slip is quickly released through the cutting method of the inner tube, and the operation demand of the overall quick recovery of the packer is met.

An ultrahigh-temperature multi-pipe real-time regulation and control layered and segmented injection-production and long-acting monitoring device is characterized in that a heat insulation oil pipe is arranged at the lower end of a large oil pipe hanger, and a high-temperature production packer is arranged on the heat insulation oil pipe; the heat insulation oil pipe is sequentially connected with the high-temperature jet pump outer working barrel, the high-temperature deep well safety valve, the oil pipe inside and outside penetrating short section, the open type telescopic short section and the steam injection and liquid production channel switching valve, and the steam injection and liquid production channel switching valve is concentrically connected with the first-stage independent injection and liquid production pipe column, the second-stage independent injection and liquid production pipe column and the inserted sealing inner working pipe column. The method has the beneficial effects that an ultrahigh-temperature multi-pipe injection and production switching mode is combined with a high-temperature injection and production integrated process, and the method is not limited to combination of injection and production processes such as high-temperature jet pump injection and production integration, high-temperature Y-pipe electric pump injection and production integration and high-temperature casting and fishing electric pump / screw pump injection and production integration; fine regulation, control, steam injection and liquid production and long-acting monitoring of a large-well-spacing long-well-section horizontal well and a multi-layer high-inclination directional well can be achieved, and the injection and production effect and efficient development of heavy oil thermal production are guaranteed.

The invention discloses a multi-lithologic oil and gas reservoir oil and gas simultaneous production electric control pipe column and a production method, and belongs to the technology of oil and gas production from a multi-layer oil well, a packer I, a bottom-hole regulator and a packer II are sequentially arranged in a sleeve from bottom to top, the packer I, the bottom-hole regulator and the packer II are all of tubular structures, and middle channels of the packer I, the bottom-hole regulator and the packer II are liquid flow channels; the packer I, the bottom-hole regulator and the packer II are sequentially connected through connecting pipes; middle channels of the packer I, the bottom-hole regulator and the packer II are communicated to form a liquid channel, and gas channels are arranged on walls of the packer I, the bottom-hole regulator and the packer II and are communicated with one another. By using the electric control simultaneous production packer, the electric control simultaneous production bottom-hole regulator and the electric control gas lift valve, oil-gas sub-runner production and simultaneous production of multiple lithologic reservoirs are achieved, the problem that a high-pressure gas layer affects liquid production of a low-pressure oil layer is solved, gas lift oil production of the oil layer is achieved through high-pressure gas, and the yield of the oil layer is improved.

Some implementations include a packer comprising: an upper mandrel; at least one seal coupled with the upper mandrel and configured to radially expand into a casing of a wellbore; a prop configured to axially traverse, in response to hydraulic pressure, along the upper mandrel and cause the seal to radially expand; at least one shear screw configured to hold the prop stationary and in contact with the upper mandrel until sheared; and a snap ring coupled with the prop and configured to prevent axial traversal of the prop along the upper mandrel and radial expansion of the seal.

The utility model relates to the technical field of packers, and discloses a supporting device for a petroleum drilling and production packer, which comprises a pipe body, a supporting ring is fixedly connected outside the pipe body, two sides of the supporting ring are fixedly connected with a connecting component for fixing, and the connecting component is fixedly connected with the pipe body. The bottom end of the side, away from the pipe body, of the connecting assembly is fixedly connected with a telescopic assembly used for adjusting the supporting height of the pipe body, the bottom end of the telescopic assembly is rotationally connected with a second rotating block, the bottom end of the second rotating block is fixedly connected with a bottom column, and a direct current motor outside the bottom column is provided with a lantern ring. A plurality of sliding blocks are fixedly connected to the inner side of the lantern ring, and a plurality of side blocks are fixedly connected to the outer side of the lantern ring. According to the utility model, by pressing and rotating the lantern ring, the sliding block is clamped with the inner wall of the bottom end of the bottom column under the pulling of the spring II, so that the extension plate extends out, the overall area of the bottom block is increased, stable support is provided for the pipe body, and the probability of damage is reduced.

The invention discloses a carbon dioxide oil displacement well completion pipe string which comprises a casing pipe, an oil pipe arranged in the casing pipe, a production packer, multiple sets of packing assemblies and an optical fiber pressure monitoring mechanism. The multiple sets of packing assemblies are located below the production packer and distributed at intervals, and the lower space, located below the production packer, of the casing pipe is divided into multiple sections of cavities. The oil pipe penetrates through the production packer and the multiple sets of packing assemblies, and a hydraulic control injection allocation device is arranged on the oil pipe section located in each cavity and connected to a control system through a hydraulic control pipeline. The optical fiber pressure monitoring mechanism is used for monitoring air pressure in the cavity; the control system cooperates with the air pressure measured by the optical fiber pressure monitoring mechanism, the opening degree of the hydraulic control injection allocator is adjusted through the hydraulic control pipeline, and then the carbon dioxide injection amount is adjusted. Through the cooperation of the hydraulic control injection allocator and the optical fiber pressure monitoring mechanism, the dynamic regulation and control of the gas injection amount of each layer of cavity is realized, the problem of low sweep efficiency caused by non-uniform gas injection of a traditional tubular column is solved, and the recovery efficiency can be greatly improved.

The invention is a method for temporary well isolation during a well completion phase, wherein the method comprises the steps of: running a production tubing (12) with at least one glass disc (20) installed, through a wellhead (10) and into a reservoir (16) in a subterrain formation (18), wherein the glass disc (20) is run in a completion fluid that is heavier than the reservoir pressure, wherein the pressure above and below the glass disc (20) is kept equal during the run in state, setting a production packer (14) and pressure test against the glass disc (20), circulating in a lighter fluid or gas to lighten a column on an upper side of the glass disc (20), characterized by creating an underbalanced pressure on the upper side of the glass disc (20), sufficient to force the glass disc (20) against a glass disc break mechanism (22) disposed on said upper side of the glass disc (20), and shatter the glass disc (20) to open the well and allowing flow in the production tubing (12).

The application discloses a pipe string structure and a control method for self-flow gas injection from a high-pressure layer to a low-pressure layer, and improves technical problems such as high well completion operation cost and great process difficulty. The pipe string structure comprises a wellbore casing, an isolation assembly, a filter assembly and a gas injection assembly. The gas injection assembly comprises: a gas injection production pipe string arranged in the wellbore casing; a production packer arranged on the gas injection production pipe string and fixedly seated with the wellbore casing, and the production packer is located above a low-pressure layer of a formation; a distribution and injection valve arranged on the gas injection production pipe string and located below the production packer, and the distribution and injection valve is located at the low-pressure layer of the formation; and a sealing part connected to the bottom of the gas injection production pipe string and sealingly connected with the isolation assembly. The application can realize self-flow of natural energy of a high-pressure layer gas group to a low-pressure layer gas group in the same well, improve the recovery rate of the low-pressure layer gas group, save cost and reduce the well completion process difficulty, and the oil well can be subjected to separate layer exploitation in the later period.