Multiple -well test (Interference and Pulse- Tests) are used to establish communication between wells and determine the inter- well reservoir properties. Both tests are conducted to determine the values of permeability (Kef) and porosity (Øef) pulse testing has some additional advantage. It is more sensitive to unknown pressure trends in the reservoir. This paper presents details of contain theoretical and practical aspects. Working equations for reduction of pulse data The average value estimated for porosity -compressibility ΦCt =4.0 *10-7 psi-1. The pressure response in well -X1(Δ p1 = 2.65 psi) for even1, to a pulse sequence at well -X2(Δp2 =2.55psi) for even 2. Comparing the values (K and Φ) using for design we see that there is a large difference between Φ obtained from pulse testing, analysis result Φ= 0.04 and Φ obtained from electrical log analysis =0.096. So by pulse test design higher values of time lag (t L) between 18 to18.5hr, cycle time (Δt) is estimated in range between 60 to 62 hr, pulse length (Δtp) is estimated between 36 to 38hr and smaller pressure response (Δp) between 2.55 to 2.6 psi were obtained for corresponding time. The values(ΦCt) or (Φef) probably smaller than the same data obtained from electrical Log, and more real.
 Johnson, C. R., R. A. Greenhorn and E. G. Woods (1966). Pulse-Testing: A New Method for Describing Reservoir Flow Properties Between Wells. JPT, Vol. 237, pp1599- 1604, Trans., AIME.
 Johnson, C. R.,and Raynor, R.,” system for measuring low level pressure Differential , “U.S Patent No . 3.247.712 ( April 26,1966) .
 Miller ,G.B.,R.W.S., and Shira ,H.W.” A new surface recording , Down Hole Pressure Gauge .”paper SPE 4125 Presented at the SPE AIME 47th Annual Fall Metting San Antonio , Tex., 8-11,1972.
 culham, W. E., ” Application of pulse –Testing Theroy ,” J .Pet.Tech . ( Oct.1969) 1245-1247.
 Startzman.R.a., ” AFurther note on pulse –Test Interpretation,” J.Pet .Tech .( Spet 1971 1143-1247 .
 Brigham ,W.E.,” planning and analysis of pulse Tests ” J.Pet .Tech ( may 1970 ) 618-624 : Trans,AIME. 249.
 Kamal, Medhat and Brigham ,Willam E., ” pulse –Testing Response for Unequal pulse and Shut-In period.” Soc . Pet. Eng .J. ( Oct 1975 ) 399- 410 ,Trans ., AIME .259
 Mckinly ,R.M., Vela, Saul and Carlton ,I.A. ” A filed Application of Pulse –Testing for Detailed Reservoir Description .”J.Pet .Tech ( March 1968 ) 313-321
Trans., AIME, 249 :
 Kamal, M. M. (1983). Interference and Pulse Testing – A Review. JPT, pp2257-2270. Lee, J. (1982). Well Testing, AIME, NY.