108 results about "Well test" patented technology

The invention provides a shale gas well inter-well pressure channeling identification method, system, device and medium, the shale gas well inter-well pressure channeling identification method comprises the following steps: carrying out well test analysis in a pump stop pressure drop stage after fracturing, and collecting data; the bottom hole pressure is calculated, and pressure data oscillation caused by the water hammer effect is eliminated; drawing a pressure difference and pressure difference derivative double logarithmic curve based on the bottom hole pressure data; establishing a shale gas well non-uniform fracture multi-zone coupling well test seepage model; the model parameters are adjusted, a pressure difference and pressure difference derivative double logarithmic curve is fitted, and when the model result is close to the drawn pressure difference and pressure difference derivative double logarithmic curve, the crack parameters of the model parameters are obtained through inversion; judging whether the crack parameter is too high or not; and determining the relationship between the child well group and the mother well group, analyzing the pressure difference and pressure difference derivative curve morphological characteristics of the fracture parameter high section, and judging whether pressure channeling occurs or not. The system can realize the method. According to the method, the inter-well pressure channeling identification efficiency in the well group synchronous fracturing period can be improved.

The invention relates to a ground simulation device for testing an underground logging pup joint, which comprises a logging pup joint and a leak-off ring which are arranged in a kettle body, the logging pup joint is positioned in the leak-off ring, the kettle body is connected with a slurry injection unit, and the slurry injection unit is used for injecting slurry into a space in the leak-off ring and a space outside the leak-off ring. The slurry injection unit is also used for injecting pressure into the leak-off ring, so that the slurry in the leak-off ring is filtered into a mud cake; electromagnets and force measuring sensors are arranged on the left side and the right side of the kettle body, the electromagnets are used for providing suction force for the well logging short section, and the force measuring sensors are used for measuring the suction force of the corresponding electromagnets; the lower end of the kettle body is connected with a vertical force applying unit, and the vertical force applying unit is used for injecting a jam releasing force in the vertical direction to the lower end of the kettle body so as to research the relationship between the jam releasing force and the suction force. Potential hazards possibly caused by testing of the well logging short section in an actual well are greatly avoided, and manpower, material resources and time cost are saved to a great extent.

The invention provides a transient productivity prediction method based on a fracture-vug reservoir pressure recovery well test model, and relates to the technical field of oil and gas reservoir development. The prediction method comprises the following steps: S1, through fracture-vuggy reservoir pressure recovery well test interpretation, establishing a fracture-vuggy reservoir well test geologic model, and obtaining reservoir parameters; s2, establishing a bottom hole pressure calculation equation under a constant flow condition, and calculating bottom hole pressure by adopting a multi-stage flow superposition principle; s3, establishing a yield calculation equation under the condition of the fixed bottom hole pressure to obtain data of flow changing along with time under the fixed bottom hole flow pressure; s4, forming a productivity prediction method that both the yield and the bottom hole pressure change along with well testing, and establishing a productivity calculation equation of the yield and the pressure when both the pressure and the flow change based on a Duhanm principle to realize transient productivity calculation prediction; therefore, a new productivity prediction method suitable for the fracture-cavity type oil reservoir is formed. The long-term production pressure and yield change of the oil well can be predicted more accurately, and development and production allocation are guided.

The application discloses a well testing pretreatment method and device, and belongs to the field of oilfield development. The method is applied to a computer device and comprises the following steps: controlling a liquid injection device to inject liquid into a first well, so that the liquid injected into the first well penetrates into a target reservoir through a well wall of the first well; monitoring the pressure at the well mouth of the first well during the injection of the liquid into the first well; when the pressure at the well mouth of the first well reaches a pressure threshold, controlling the liquid injection device to stop injecting liquid into the first well and monitoring the change rate of the pressure at the well mouth of the first well; when the change rate of the pressure at the well mouth of the first well is stable, controlling a liquid return channel and a first packer to be opened, so that the liquid penetrating into the target reservoir returns to the well mouth of the first well through the liquid return channel; and monitoring the pressure difference on both sides of the first packer during the liquid return, and when the pressure difference on both sides of the first packer reaches a pressure difference threshold, controlling the liquid return channel to be closed. The application can improve the well testing effect.

The invention provides a well spacing method for a multi-thin-layer tight sandstone gas reservoir under complex landform conditions. The well spacing method comprises the following steps: finely describing a sand body structure, determining the development scale and characteristics of a single sand body, and constructing a width-to-thickness ratio empirical formula of the single sand body; according to a sedimentary microfacies research result of a to-be-distributed well area and a single sand body width-to-thickness ratio empirical formula, drawing a plane distribution diagram of each layer of sand body, according to a reservoir parameter standard of the to-be-distributed well area, compiling and developing a favorable area in a layered manner, and overlapping to form a construction and production favorable area plane graph; collecting interference well testing data of a to-be-distributed well area or an adjacent area, counting well row spacing when interference is seen so as to determine reasonable well spacing of the to-be-distributed well, and carrying out numerical simulation to optimize the well pattern model; according to the method, topographic and geomorphic characteristics are considered as a whole, and in a construction and production superposition favorable area, a regular hexagon seven-point well pattern is adopted for well spacing, so that the well pattern is matched with a topographic and geomorphic target body. The problem that in the prior art, a multi-thin-layer sandstone gas reservoir is not prone to forming a well site under the complex landform condition is solved.

The invention discloses a productivity prediction method and device based on multi-layer commingling exploitation development, equipment and a medium. The method comprises the following steps: performing well test interpretation on a multi-layer oil reservoir corresponding to a reference oil well based on test data of a short-time pressure drop test to obtain an inversion parameter corresponding to each layer section; determining an initial injection index of each layer section according to the test data of each layer section; correcting the initial injection index based on the test data and the inversion parameter of each layer section to obtain a target injection index of each layer section; and determining a productivity prediction model according to the target injection index of each layer section and the multi-layer commingling production oil production index of the reference oil well, and performing productivity prediction on the target oil well based on the productivity prediction model. According to the technical scheme, external interference caused by a short-time pressure drop test can be effectively eliminated by correcting the injection index, the accuracy of the injection index is improved, the fitting effect of the injection index and the oil production index is enhanced, and the accuracy of multi-layer commingling production capacity prediction is improved.

The application discloses a kind of faulted dissolution body reservoir oil well producing depth acquisition method, device, equipment and medium.Faulted dissolution body reservoir oil well producing depth acquisition method includes: obtaining the temperature well testing monitoring data of target faulted dissolution body reservoir oil well;Temperature well testing monitoring data is handled, and actual temperature well testing interpretation curve is obtained;Temperature well testing model of target faulted dissolution body reservoir oil well is constructed, and the theoretical temperature well testing interpretation curve corresponding to multiple heat transfer distances is obtained based on temperature well testing model;Comparative analysis actual temperature well testing interpretation curve and theoretical temperature well testing interpretation curve, the heat transfer distance corresponding to the theoretical temperature well testing interpretation curve most matched with actual temperature well testing interpretation curve is determined as the producing depth of target faulted dissolution body reservoir oil well.Using the present application can reduce the uncertainty of faulted dissolution body reservoir producing depth calculation, improve the accuracy of producing depth calculation.

The invention discloses a water invasion oil and gas well productivity prediction method and system based on well test interpretation and seepage theoretical calculation, and relates to the technical field of oil and gas reservoir development. The method comprises the following steps: establishing a gas well test interpretation model based on well test data; performing historical data fitting on the gas well test interpretation model to obtain a productivity well test indication curve; analyzing the characteristics of a productivity well testing indication curve, and introducing additional pressure loss coefficient and laminar flow item coefficient correction based on a seepage mechanics theory to obtain a plane radial non-Darcy seepage productivity evaluation model of the water-invaded gas well; and building a block well type and stratified system correlation coefficient correction chart based on a non-Darcy seepage productivity evaluation model, and guiding reasonable production allocation and injection allocation of the oil and gas field / gas storage well. Rapid and reasonable production allocation and injection allocation of the water-invaded gas well can be achieved, the cost is reduced, the efficiency is improved, the number of well testing times is greatly reduced, and reasonable and efficient operation of oil-gas field development / gas storage injection and production is guaranteed.

The invention discloses offshore exploratory well testing and draining equipment and a metering method, and the offshore exploratory well testing and draining equipment comprises a liquid supply device, an underground device and a separation metering device, and further comprises a temperature difference energy thermal circulation device. The temperature difference energy heat cycle device comprises a steam generation assembly, a power generation assembly and a heating assembly; the steam generation assembly is used for generating steam by utilizing temperature difference energy of surface seawater and deep seawater; the power generation assembly is used for generating power through steam and supplying power to the heating assembly. The heating assembly is used for heating working fluid supplied into the downhole device. The working liquid heated to the preset temperature is supplied into the underground device and mixed with the produced liquid, the temperature of the mixed liquid of the produced liquid and the working liquid is increased, the viscosity of the mixed liquid is reduced, the mixed liquid is smoothly discharged to the separation metering device through the liquid outlet, and the problems that the temperature difference of an offshore exploratory well is large, the produced liquid is attached to the inner wall of a shaft due to low temperature, and productivity evaluation is affected are solved.

This invention relates to the field of well test interpretation technology, and discloses a method and related equipment for calculating the length of large-scale natural fractures. By establishing a mathematical model of well test in a naturally fractured reservoir, calculating the real-time bottom hole pressure, and plotting the interpretation curve of the well test in the naturally fractured reservoir, the theoretical bottom hole pressure is obtained by combining the real-time bottom hole pressure and the interpretation curve, and the theoretical well test curve is plotted. Finally, the natural fracture length is obtained by fitting the theoretical and measured curves. This method overcomes the limitation of uniform fracture distribution in conventional models, is suitable for deep gas reservoirs with poor matrix properties and strong fracture heterogeneity, and avoids the problem of only being able to obtain equivalent parameters and interpreting parameters that do not reflect reality. It accurately characterizes the fracture development state and improves the accuracy of well test interpretation.

The invention provides a method for determining the permeability and porosity of a karst cave main body in an interlayer karst area, and the method comprises the steps: collecting the data of a research area, and determining a single well belonging to a single fracture-cave body; single-well test interpretation is conducted, and the inner area permeability and the outer area permeability of single-well test interpretation are determined; establishing a first relation model by utilizing the inner area permeability and the outer area permeability, establishing a fracture zone well logging interpretation model by utilizing the research area data, and performing fracture zone permeability well logging interpretation; and obtaining the cave main body permeability through the first relation model and the fracture zone permeability. The porosity determination method comprises the following steps: determining the permeability of the karst cave main body by adopting the permeability determination method; and establishing a second relation model by utilizing the research area data, and obtaining the porosity of the karst cave main body through the second relation model and the permeability of the karst cave main body. According to the method, values are accurately assigned to the porosity and permeability of the interlayer karst fracture-cavity body, and important reservoir physical property parameters are provided for efficient development of the fracture-cavity type carbonate reservoir.

The application discloses a method and device for determining percolation characteristics of a reservoir, and belongs to the technical field of oil and gas reservoir exploration and development. The application divides different reservoir space matching types by the structural characteristics and distribution characteristics of the reservoir space in a core, constructs a corresponding reservoir conceptual model for each reservoir space matching type, establishes a corresponding percolation model for different types of reservoir spaces in the reservoir conceptual model, and obtains the pressure response of the outlet end of different reservoir conceptual models in the process of solving the percolation model, so as to draw a well test characteristic curve, and determine the corresponding relationship between different reservoir space matching types and percolation characteristics according to the well test characteristic curves of different reservoir conceptual models, thereby providing support for the identification and evaluation of multiple medium reservoirs.

The application belongs to the technical field of oil and gas field development, and particularly relates to a porosity determination method, device, electronic equipment and storage medium. The porosity determination method comprises the following steps: obtaining seismic data and measured well data of a target area; establishing a geometric structure model of a fracture-vug type reservoir according to the seismic data; establishing a three-dimensional numerical well test model according to the geometric structure model and a corresponding fluid model; obtaining bottom hole pressure simulation data in the three-dimensional numerical well test model; and determining target porosity of the target area according to the bottom hole pressure simulation data and the measured well data. The application establishes a geometric structure model of a fracture-vug type reservoir through seismic data of a target area, then establishes a three-dimensional numerical well test model according to the geometric structure model, and finally determines target porosity of the target area by comparing bottom hole pressure simulation data of the three-dimensional numerical well test model with measured well data, thereby solving the problem of porosity assignment of a fracture-vug type reservoir.

The invention discloses a deepwater high-pressure well test system, and the system comprises an acquisition module which comprises a plurality of pressure sensors and is used for acquiring the pressure of different positions in a deepwater high-pressure well; the input end of the optimization module is electrically connected with the output end of the acquisition module, and the optimization module is used for optimizing the acquired data; the input end of the processing module is electrically connected with the output end of the optimizing module, and the processing module is used for judging the high-voltage leakage condition; the input end of the output module is electrically connected with the input end of the processing module; the invention further discloses a deepwater high-pressure well testing method, the underground high-pressure leakage condition can be judged, and the phenomenon of overpressure damage or explosion to downstream equipment due to the fact that high pressure is kept in the low-pressure process is prevented.

This invention provides a construction method for deep exploration well testing, relating to the field of deep exploration well testing technology, including: Step 1, installing and pressurizing a test blowout preventer (BOP) assembly, and performing well cleaning operations after the pressure test is passed; Step 2, performing perforation operations using a tubing-transfer perforation method; Step 3, removing the perforation tubing; Step 4, running in a combined stimulation-testing process tubing; Step 5, disassembling the test BOP assembly and installing a gas production wellhead; Step 6, performing test extrusion and acidizing operations; Step 7, performing fluid drainage, sampling, and production assessment; This method solves the problems of low success rate, long construction period, and high construction cost in existing deep exploration well testing construction techniques.

Disclosed are methods, systems, and computer programs for generating petrophysical analysis data. The methods include: accessing first porosity data and first well log data associated with an NMR well; randomly selecting data elements comprised in the first porosity data and the first well log data; developing, based on the randomly selected first porosity data and first well log data, a learning data structure; generating, based on the learning data structure, a machine learning model; receiving second well log data using sensor(s) deployed about a non-NMR well; adapting, based on the second well log data, variable input parameters of the machine learning model to generate second porosity data; and formatting the second porosity data to generate petrophysical analysis data. The petrophysical analysis data indicates one or more of: a petrophysical characterization of a rock type; flow dynamic data of a carbonate reservoir; well test or perforation zone data; and pore data.

The present application relates to oil and gas well testing technology field, is a packer card seal production profile testing string and method, the former includes from top to bottom in turn connected together first coiled tubing, production profile logging instrument, second coiled tubing and packer, the first coiled tubing upper end is equipped with depth counter.The present application is reasonable and compact, through setting depth counter, can accurately position production profile logging instrument, second cooled tubing and packer, improve the testing efficiency of perforation cluster, through setting production profile logging instrument and packer, can test each perforation cluster, solve the problem of inaccuracy of testing, such as turbine revolution abnormality caused by uneven speed of coiled tubing dragging, large deviation of test result caused by coiled tubing dragging breaking casing inner oil and gas water distribution state, inaccuracy of tubing outside channeling test, can accurately test the contribution rate of each perforation cluster production, provide basis for reservoir understanding and fracturing scheme optimization.

The present application belongs to the field of oil and gas field development and intelligent measurement technology, and specifically discloses a shale gas single well AI measurement method and system, which comprises cutting into a single well test separator, obtaining gas production and liquid production measured data and correcting oil and gas reservoir mechanism model parameters; calculating the bottom hole flowing pressure and theoretical gas production and constructing a gas production trend prediction model; switching the single well to a production separator for mixed transportation production, real-time acquisition of wellhead operating parameters, calculation of single well gas production and prediction value by using the oil and gas reservoir mechanism model and the gas production trend prediction model; judging the single well production state and calculating the error level between the prediction value and the measured value; automatically generating a test rotation plan according to the single well production state and the error level, adjusting the test priority and frequency of the single well; and using the new measured data obtained by the rotation test to iteratively update the oil and gas reservoir mechanism model parameters and the gas production trend prediction model. The present application solves the problems of large error, high cost and dependence on manual operation of the existing measurement technology.

The invention discloses a natural gas well productivity prediction and well test analysis method and system, and belongs to the technical field of natural gas related basic theory research. The method is based on related theories of mathematical physical equations and combines seepage characteristics of real gas in a porous medium in a natural gas well; according to the method, a natural gas nonlinear unstable seepage partial differential equation is established, a dimensionless transformation function of pressure, time and position defined based on a differential quotient is introduced, an analytical solution of the nonlinear seepage equation considering the turbulence effect is obtained, the productivity of a natural gas well is predicted, well testing data is analyzed, and well testing model calculation shows that the yield of the natural gas well is greatly improved. After the inertia-turbulence effect is considered, the bottom hole pressure is lower; the calculation of a fixed bottom hole flowing pressure model shows that the gas well yield is reduced after the inertia-turbulence effect is considered; compared with an existing method, the result has the advantages that errors are reduced, the precision is higher, and a certain theoretical basis can be provided for further researching the problem of unstable seepage of the complex heterogeneous oil and gas reservoir.

This invention discloses a method for determining the production capacity of a coalbed methane (CBM) well without shutting it in. The method includes: acquiring basic data of the CBM well; determining a relationship table between pressure and CBM deviation factor, and a relationship table between pressure and apparent pressure, based on CBM PVT experimental data; recording the daily gas production, bottom hole pressure, and cumulative gas production of the CBM well at each stable flowing pressure test moment during three or more different production stages; determining the formation pressure corresponding to each stable flowing pressure test moment using a mass balance equation; determining the coefficients of the CBM well's production capacity equation based on the formation pressure, bottom hole pressure, and production at each stable flowing pressure test moment, thereby obtaining the CBM well's production capacity equation; and substituting the formation pressure and bottom hole pressure values ​​into the production capacity equation and solving for the corresponding CBM well production capacity. This invention effectively overcomes the shortcomings of traditional well testing methods that require shutting in the well to test formation pressure, and avoids the problem that the applicable conditions of existing non-shutdown methods for determining gas well production capacity equations are difficult to meet.

The invention relates to the technical field of well test interpretation, in particular to a carbon dioxide flooding phase state interactive seepage well test interpretation method which comprises the steps that a three-area composite seepage model of an injection well and a radial composite seepage model of a production well are solved; and explanation: drawing a corresponding pressure derivative curve according to each explanation method, respectively explaining by utilizing each well test explanation method, and taking the mutually matched explanation results as well test explanation results. According to the method, multiple well test interpretation methods are combined for mutual verification, the accuracy of interpretation results is improved, the multiplicity of the interpretation results is reduced, in addition, effective interpretation results can be obtained through the early well test interpretation method for the test wells which do not show radial flow and linear flow characteristic sections due to the fact that the well shut-in pressure recovery time is short, and the well test efficiency is improved. Compared with a traditional interpretation method, the early well test interpretation method has the advantages that the multiplicity of interpretation results is remarkably reduced, and a reliable basis is provided for carbon dioxide flooding miscible phase development.

The invention relates to the technical field of gas well exploitation, and discloses a method and device for determining gas well productivity calculation parameters, and the method comprises the following steps: S1, building a relational expression between the gas well test gas production rate and the flow pressure gradient according to the test data of a gas well subjected to productivity well test in a gas reservoir; s2, obtaining a static pressure gradient of the gas well in the gas reservoir based on a relational expression between a gas well test gas production rate and a flow pressure gradient, and then determining a to-be-developed productivity to calculate a middle formation pressure of a production layer of the gas well; s3, the test yield of the gas well is calculated according to the capacity to be developed, the flow pressure gradient of the well is obtained, and then the middle flow pressure of a production layer of the well is calculated; and S4, establishing a binomial productivity equation according to the test data of the gas well subjected to productivity well testing in the gas reservoir, and finally determining a productivity correction coefficient. According to the method, the calculation work of the other gas well productivity calculation parameters in the gas reservoir area can be carried out only by carrying out productivity well testing work once, and the cost and the period of gas well productivity calculation are remarkably reduced.

The application discloses a weak gel profile control reservoir four-dimensional well testing interpretation method and device, which is based on fluid percolation theory in porous media, and is a kind of weak gel profile control reservoir four-dimensional well testing forward and inversion algorithm established and solved according to mathematical physics method.According to the method, the fluid parameter distribution in the detection radius range around the well can be inverted by using the measured pressure data of the well testing after weak gel profile control, and then the weak gel viscosity distribution after profile control is obtained.Through the experimental data of the relationship between weak gel viscosity and concentration, the weak gel concentration distribution in the detection radius range around the well can be inversely solved by using the weak gel viscosity distribution.And through the weak gel concentration peak value in the distribution graph, the weak gel profile control plugging position can be determined.The weak gel profile control reservoir four-dimensional well testing forward and inversion algorithm established by the application solves the problem that the weak gel concentration distribution of the weak gel profile control reservoir plugging position is difficult to determine, and provides a theoretical basis for the next step of profile control scheme.

The invention provides a fractured low-hole sandstone gas well productivity evaluation method and system, a terminal and a medium, and the method comprises the following specific steps: S1, recognizing the seepage mode of a fractured low-hole sandstone reservoir gas well by using a shut-in pressure recovery curve and a well testing double logarithmic curve; acquiring earthquake and geological data of the to-be-tested large-crack master control type seepage mode gas well and underground pressure measurement data or wellhead oil pressure data over the years; s2, inputting the data into a well testing crack distribution model to obtain fitting flowing bottomhole pressure, and evaluating the productivity of the gas well by using the fitting flowing bottomhole pressure; wherein the well testing crack distribution model is established by adopting macroscopic characterization data, static development position data and dynamic development position data of a large crack master control type seepage mode gas well; and performing constraint optimization by using underground pressure measurement data or wellhead oil pressure data of the test gas well over the years. According to the method, the gas well productivity can be accurately evaluated, and a reliable basis is provided for scientific development of a gas field and reasonable production allocation of the gas well.

The application discloses a method for identifying remaining reserves distribution of a water-bearing gas reservoir, and belongs to the technical field of oil and gas field development. S1, a water body at the edge of a gas reservoir and internal gas wells are equivalent to separate units, and initial control volumes of each unit and between the units are calculated; S2, unit pressures and water contents are calculated, and the control volumes of each unit and between the units are corrected in real time; S3, initial control reserves and corrected control reserves are calculated according to the initial control volumes and the corrected control volumes, so that the remaining reserves and the remaining reserves distribution of the gas reservoir are determined. The application corrects the control volumes of each unit and between the units on the basis of the measured water content data of the gas well and the single-well testing interpretation result data, and on the basis of the gas reservoir engineering method and the intelligent optimization algorithm, so that the remaining reserves and the remaining reserves distribution of the water-bearing gas reservoir are determined, and the technical problem that the remaining reserves recovery efficiency cannot be improved because the natural gas is sealed by the water invasion in the water-bearing gas reservoir, and the sealed natural gas cannot be accurately identified is solved.

The invention discloses a gas storage injection-production capacity analysis method, which comprises the following steps of: establishing a binomial productivity equation for an injection-production well of which productivity well testing data is obtained; for a well which only obtains a one-point method productivity test, a binomial productivity equation is established through approximate regression by using a stable test point (qg, pwf) and a calculated open-flow capacity point (qAOF, 0.1). And combining with the well body structure of the injection-production well, making an injection-production capacity analysis chart of the injection-production well at different injection-production stages and under different formation pressures through node analysis, and evaluating the matching relationship between the reservoir seepage capacity and the well shaft through the chart to obtain the injection-production gas quantity of the injection-production well under different formation pressures, well bottom pressures and well mouth pressures. Meanwhile, the influence of gas flow erosion on the oil pipe in the injection-production process of the injection-production well is considered, an oil pipe injection-production anti-erosion capacity analysis chart of the injection-production well under different formation pressures is formed, and technical support is provided for evaluating the injection-production capacity of a gas storage and optimizing deployment of the injection-production well.

The embodiment of the present application discloses a kind of prediction reserve upgrade evaluation method and device based on exploratory well test oil production prediction.Therein, the prediction reserve upgrade evaluation method based on exploratory well test oil production prediction includes: determining the reservoir type in the block to be evaluated prediction reserve based on the obtained data;Collect the exploration data of the determined reservoir type;Based on the exploration data, establish the exploratory well test oil production prediction model corresponding to the reservoir type;Determine the plane distribution of parameters in the prediction model;Based on the plane distribution and prediction model, determine the upgrade prediction reserve range;Based on the upgrade prediction reserve range, obtain the reserve scale in the upgrade range.Using the exploratory well data of the same or similar reservoir type as the block to be evaluated prediction reserve, effectively solve the problem of lack of exploration data in the block to be evaluated reserve, achieve the purpose of quantitative prediction of exploratory well test oil production, avoid single reliance on geological analysis to evaluate the upgradability of prediction reserve.

Provided is a downhole tool, a well system, and a method. The downhole tool, in one aspect, includes a lower completion, and a half wet connect lower connection assembly coupled to an uphole end of the lower completion. The downhole tool, according to this aspect, further includes a remote monitoring and control module, and a half wet connect upper connection assembly coupled to a downhole end of the remote monitoring and control module, the half wet connect upper connection assembly and the half wet connect lower connection assembly coupled together to form a full wet connect assembly. In at least one aspect, the remote monitoring and control module is configured to perform a well test of a subterranean formation of a wellbore surrounding the lower completion prior to running an upper completion within the wellbore.

The invention provides a crack parameter joint inversion method based on regional multi-well constraint. According to the method, on the basis of well test response of multiple wells in a target block, an inter-well weight relation is constructed by utilizing inter-well space distance and structure consistency information, and a joint inversion model containing a single well fitting item, a region consistency constraint item and a prior constraint item is established on the basis. Through a double-layer iteration structure formed by inner layer single well parameter optimization and outer layer area coordination updating, while single well test fitting precision is ensured, area consistency constraint is applied to key crack parameters, inter-well parameter interpretation differences are gradually weakened, and a stable and convergent multi-well collaborative inversion result is obtained. Compared with a traditional single well independent interpretation method, the method has the advantages that discreteness and multiplicity of an inversion result can be reduced, continuous and coordinated expression of fracture parameters on the regional scale is formed, and the method can be used for multi-well test comprehensive interpretation, fracturing effect evaluation and regional fracture parameter characterization under the complex reservoir condition.