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45 results about "Hierarchical test" patented technology

Hierarchical Testing. One simple but novel feature of Agar that has not been explicitly described in other CAA systems is the notion of hierarchical testing: if a given test fails, run one or more secondary tests and return the sum of their outputs instead.

One-trip string two-layer layering perforation-layering testing combining tubular column and operation method thereof

ActiveCN106150445AImprove admission qualityIncrease the proportion of stratified oil testingFluid removalWell/borehole valve arrangementsHierarchical testInternal pressure
The invention relates to a one-trip string two-layer layering perforation-layering testing combining tubular column and an operation method. The tubular column comprises a first oil tube, a depth correction short joint, a second oil tube, a circulating valve, a third oil tube, a testing valve assembly, a second pressure gauge supporting cylinder, a second pressure transfer joint, a straddle packer, a second sieve tube, a spacer tube, a pressure guiding joint, a second ignition head, a second perforating gun, a pressure release device, sealing layer well shut-in sampling valve, a damping pressure gauge supporting cylinder, a first pressure transfer joint, an anchor packer, a first sieve tube, a shock absorber, a fourth oil tube, a first ignition head, a first perforating gun, a pressure relieving device, a second inner pressure transfer tube, a first pressure transfer tube and a first outer pressure transfer tube. The sealing layer well shut-in sampling valve is located between the second perforating gun and the anchor packer. The damping pressure gauge supporting cylinder is located below the sealing layer well shut-in sampling valve. by adopting the tubular column, two-layer layering perforation and layering testing combination can be completed, final well shut-in of the first layer does not need to occupy the operation machine time independently, down-hole sampling is convenient, and the tubular column has the advantages of being short in period, low in cost and the like.
Owner:DAQING DANFENG PETROLEUM TECH DEV CO LTD

Multi-layer multi-section continuous oil testing system without lifting tubular column and operation method thereof

The invention relates to a multi-layer multi-section continuous oil testing system without lifting a tubular column. The system is connected on the downhole testing tubular column in series and comprises an upper sub-system, a plurality of layered testing systems and a lower sub-system which are sequentially connected in series along the axial direction of the tubular column, wherein the upper sub-system comprises a manifold circulating valve, a main testing valve, a full-bore pressure gage support barrel, a safe connector and a top hydraulic packer which are sequentially connected in series along the axial direction of the tubular column. The plurality of layered testing systems are sequentially connected on the tubular column in series along the axial direction of the tubular column, each layered testing system corresponds to one oil layer, and each layered testing system comprises a hydraulic switching valve, a safe connector and a layered hydraulic packer. The lower sub-system comprises a hydraulic sliding sleeve, a pressure transmitting connector and a monitoring pressure gage which are sequentially connected in series along the axial direction of the tubular column. By means of the system, multi-layer and multi-section continuous testing, capacity increasing revamp, liquid discharging and a series of downhole operation processes can be completed without lifting the tubular column, and the system has the advantages of being simple in construction operation, convenient to assemble, short in construction period and the like.
Owner:PETROCHINA CO LTD

Hierarchical prediction method for composite material multi-direction lamination board by considering fiber bridge connection influence based on improved B-K criterion

The invention discloses a hierarchical prediction method for a composite material multi-direction lamination board by considering fiber bridge connection influence based on improved B-K criterion. By performing a static force hierarchical test on I type, II type and I/II mixed type of different mixed ratios of CFRP multi-direction lamination board, I type interlayer fracture toughness GIC (a), II type interlayer fracture toughness GIIC (a) and interlayer fracture toughness GC (a) of different mixed ratios which are changed along with hierarchical lengths are determined; least square fitting on three-dimensional data is performed to obtain a parameter <eta> in the improved B-K criterion considering the fiber bridge connection influence; next, by taking the GIC (a), the GIIC (a) and the fitting parameter <eta> as important parameters in the improved B-K criterion, a finite element model based on a cohesion unit is established, and hierarchical expansion behaviors of different mixed ratios are simulated by applying the improved criterion; and the accuracy and the applicability of the disclosed improved criterion are verified by contrast tests and numerical value results, so that hierarchical expansion behaviors of any other mixed ratios can be further predicted by applying the improved criterion, thereby greatly shortening the experimental period and lowering experimental cost.
Owner:BEIHANG UNIV +1

Intelligent control device and control method of layer mining, control and testing of gas well

The invention discloses a control method layer mining, control and testing of gas well. The method comprises the following steps: setting three production gas layers of a natural gas well as a gas layer A, a gas layer B and a gas layer C, mounting a direct reading intelligent gas well underground layering zonal pressure measuring device on each layer, packing the three production gas layers through a gas control underground packer, and ensuring that a ground intelligent control box gives an instruction to enable the direct reading intelligent gas well underground layering zonal pressure measuring devices of the gas layers A and C to be closed, open a communicating hole of the direct reading intelligent gas well underground layering zonal pressure measuring device of the gas layer B when the gas layer A is required to be closed, the gas layer B is required to perform production and the gas layer C is required to be closed, so as to enable natural gas of the gas layer B to be output to the ground through an oil pipe and to realize layer control; ensuring that a ground metering station can timely measure the gas output of a layer, so as to realize layer gas production; ensuring that the direct reading intelligent gas well underground layering zonal pressure measuring devices can record the production pressure difference and underground temperature at the same time, so as to realize layer testing. The gas layer A, the gas layer B and the gas layer C can be subjected to simultaneously gas production and testing.
Owner:DONGYING XINJI PETROLEUM TECH

Two-layer delamination perforation-delamination test combined pipe string in one trip and its operation method

ActiveCN106150445BImprove admission qualityIncrease the proportion of stratified oil testingFluid removalWell/borehole valve arrangementsInternal pressureHierarchical test
The invention relates to a one-trip string two-layer layering perforation-layering testing combining tubular column and an operation method. The tubular column comprises a first oil tube, a depth correction short joint, a second oil tube, a circulating valve, a third oil tube, a testing valve assembly, a second pressure gauge supporting cylinder, a second pressure transfer joint, a straddle packer, a second sieve tube, a spacer tube, a pressure guiding joint, a second ignition head, a second perforating gun, a pressure release device, sealing layer well shut-in sampling valve, a damping pressure gauge supporting cylinder, a first pressure transfer joint, an anchor packer, a first sieve tube, a shock absorber, a fourth oil tube, a first ignition head, a first perforating gun, a pressure relieving device, a second inner pressure transfer tube, a first pressure transfer tube and a first outer pressure transfer tube. The sealing layer well shut-in sampling valve is located between the second perforating gun and the anchor packer. The damping pressure gauge supporting cylinder is located below the sealing layer well shut-in sampling valve. by adopting the tubular column, two-layer layering perforation and layering testing combination can be completed, final well shut-in of the first layer does not need to occupy the operation machine time independently, down-hole sampling is convenient, and the tubular column has the advantages of being short in period, low in cost and the like.
Owner:DAQING DANFENG PETROLEUM TECH DEV CO LTD

Layered rotary cutting test device and test method for adhesion near interface with volume change being restrained

The invention provides a layered rotary cutting test device and test method for adhesion near an interface with volume change being restrained. The device is formed by a base with a groove, a metal washer, a soil sample, bolt pins I-III, a metal bottom plate, bolts, a ring cutter, a wall protection cylinder, filter paper, a water permeable plate, a torque meter, a driving power supply, a pressurization cover plate, a rotary cutting plate and a sliding ring. The distance between the rotary cutting plate and the metal bottom plate is changed through the metal washer, the driving power supply drives the rotary cutting plate at different constant speeds, and shear load is recorded by the torsion meter, thereby realizing a function of testing the shear load of the soil sample sheared at different speeds under different rotary cutting distances; the setting of the metal washer effectively solves the problem of changing the micro rotary cutting spacing between the rotary cutting plate and themetal bottom plate; and the setting of the wall protection cylinder effectively solves the problem of observing the soil sample shear damage characteristics on the metal bottom plate after test. Thelayered rotary cutting test method for adhesion near the interface with the volume change being restrained is an effective method for studying rotary cutting adhesion near the interface and adhesion difference characteristics.
Owner:NANJING FORESTRY UNIV
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