Based on an unknown mixed-phase pulse deconvolution proposed by Huang Xiaojing,an improved deconvolution method is presented in this paper. Compared with Huang s decomvolution,this method possesses the advantages of (1)less operation and (2)a better deconvolution effect for the seismic wavelet compression.
Based on the theoritical study of gravity-flow sediment as well as that of sections and reservoirs，the author in this paper concludes that grain-flow elastic shell limestone reservoirs of gravity-flow sediments are an important factor in the control of oil and gas distribution. Accordingly，sublacustrine fan model of gravity-flow sediment is set up to decide the favorable exploitation regions.
The analysis of the production data of Jinglou Oilfield of Henan and one of its pilot-areas, Opilot，reveals the recovery law of cyclic steam simulation and steam flooding in thin thickness heavy oil reservoir: While the vertical displacement is efficient and the recovery rate and percentage are high, the oil production rate per well, cyclic oil production and oil-steam ration are low, and oil production declines fast.
In steam flooding production，it is very important in heavy oil production to base on practical production the estimation of production change and the determination of cyclic steam phase, steam injection state and oil well production velocity so that a rational production method can be obtained and oil recovery ratio increased. The paper employs numerical simulation method to discuss the problem and gives out the results of the calculation.
This paper establishes the percolation mathematical models of a homogeneous anisotropic reservoir horizontal well in or without consideration of wellbore storage and skin effect. After the solution of the mathematical models have been obtained by using characteristic function ,finite integral transforms, Laplace transforms, and other methods, the pressure and pressure derivative type curve is drawn that is suitable for the horizontal well testing analysis，by using numerical integral and numerical inversion methods. The approximative expression also derived of early and late pressure drop of the horizontal well testing analysis.
This paper presents a numerical method of solving the partial differential equation that describes flowing law of horizontal wells, by which the idealized productivity of a horizontal well can be computed after the pressure profile and three dimensional velocity have been acquired at each node. In addition，a sand concentration profile model in flowing liquid has been established, which can predict sand production of a well that might produce sand.
the casing design of viscous oil horizontal well is quite different from that of conventional well. This paper introduces a method of calculating the thermal stress on the casing stings of a viscous oil horizontal well, benging load, friction resistance. This paper also introduces the method of designing maximum load of the casing strings of a horizontal well on the basis of above calculations, and its application in the design of Leng Ping Well 1, Liao He oilfield.
This paper presents a method of processing the waste water into clean salt—water well control fluid at the density of 1.0 1.4 g/cm, and the application of this well control fluid. Experimental measurement and field application show that it is a high-grade and harmless fluid the use of which can be expanded.
The testing diagnostic instrument is characterized by its adrers applications，mobile and frequent operations. In the light of these characteristics, this paper discusses the structure and the design principle of the diagnostic instrument with 80 C 31 single chip computer as its core. The problems，such as low reliability，high price and difficult operation of the original instrument have been solved.
The paper has developed criterion "C" formula determining the solidity of the wellbore rock of vertical，horizontal and inclined wells，analyzed the parameters that influence the formula，and discussed its application in the selection of well completion methods. In addition, some useful conclusions have been made.
On the basis of the investigation of advanced jet mechanism，this paper analyzes the mechanism of pulsed jet nozzle and the relation of its power to hydraulic energy, and derives the calculation formula. The result shows that the power obtained from the instantaneous high frequency jet of pulsed nozzle to be 2. 558 times as great as that of the low-frequency jet, and 1.438 times as great as that of continuous jet .Moreover, the calculation formulas of hydraulic power and impulsive force are derived, which presents the theoretical basis for the application and further study of pulsed jet nozzle.
In order to have an immediate，comprehensive and reliable quantitative analysis of the test signal of the dynamic pressure，a signal analysis software (XHFX)has recently been developed. The application of XHFX will obtain a correct evaluation of the waveform feature，frequency structure and energy distribution, and some other similar complex signals as well.
Based on the synthetic measuring system of performance parameter of drill pump，the QLSA FFT is cooperatively developed by SWPI and South Sichuan Oil Field. With a Chinese instruction and window display, the FFT possesses better functions and can be operated easily. Authors in this paper have introduced some. results about measured performance parameter with the QLSA FFT.
A problem-solving model is a scheme to organize inference steps and domain knowledge in constructing a solution to a problem. Based on blackboard model, the design method in this paper are those of engineering analysis expert system, including hierarchical representation of expert strategic knowledge，completion of depth-first search and reasoning network model，construction of hierarchical reasoning network model for cooperative mufti-expert system, design of interpretation scheme and interface, and reasoning algorithm.
The paper introduces the application of Computer Aided Design (CAD) in the design of cone bit. In this paper，Whole software，is given With its principle，its features and its working method .Based on the geometry and kinematics of cone bit，and designed in FORTRAN77. The software make some reasonable borrowings from AUTOCAD software so as to meet the needs of designing and drawing. The software can be used conveniently in the designing and calculation of cone bit and this is now still in a leading position in China
In the research of the phase state of natural gas，the ending criterion of the K-cycle in calculation of equlibrium constant ki used to adopt; It has proved through calculations that the ending criterion using |En+1/En-1|≤σ is right.
Through the analysis of the chemical reaction mechanisms of fuel oil burning in a combustion chamber of an engine ,authors in this paper find the relationships between the. reaction mechanism and exhaust air pollution caused by automobiles and saving fuel oil，and descuriobe the action mechanisms of major eliminating smoke and saving energy additives used in our country .They also put forward a standpoint that the atomic state of some function elements can function in the formation of charcoal smoke by the catalytic hydrogenation borore within these additives. Further more，they also introduce their own production of the action mechanisms of the fuel oil saving energy agent.
This paper introduces the concepts of the random pseudo—metric collection space and the random topolobical space，Studies the relations between the random pseudo—metric collection space and the probabilistic pseudo—metric collection space，and constructs ordinary topoloby and random topoloby in the random pseudo—metric collection space.
